Muffler.



D. D. HELDER. MUPFLBR.

APPLICATION FILED JUNE 7, 1911.

1,015,955. Patented Jan. 30, 1912.

8 ,l'aer//elder- Daarna 1p. narran, or snrrtans TowNsHxr, sioux ooirr,Iowa.

MUFFLER.

Specication of Letters latcnt.` Application led June 7, 1911.

Patented Jan. 30,1912. Serial No. 631,691.

i 'To all lwhom it may concern Be it known that I, Daarna D. HELDER, acitizen of thel United States, residing in Settlers township, in thecounty of Sioux and State of Iowa, have invented certain new and usefulImprovements in lMuiilers, of which the following is a specification.

M invention' relates to improvements in mu ers, and has for its objectthe provision of an improved form of double mutller Vfor use uponautomobiles of the gasolene type.

The further object of my invention is the provision of an automobilemuiiler formed with an improved -construction of muiiler rings, whichrings may be readily placed in correct position within the muiiler andma be easily secured in said position.

Another object of my invention is the provision in connection with amutlier constructcd "from my improved muffler ring, of improved meansVfor engaging the ring at one end of the muiler to firmly secure theentire set of rings of the Inuftier in posit-ion.

Other ob'ects and advantages of my improved mu er will be readilyapparent by reference to the following description taken in connectionwith the accompanying drawings and it will be understood that I may makeany modifications in the specific structure shown and described withinthe scope of my claims without departing from or exceeding the spirit ofthe invention.v

Figure 1 represents 'a top plan view yof my complete dou le'muler.. Fig.2 represents a longitudinal Vsectional view of one of the cylinders ofthe mufliers. Fig. 3 represents a cross sectional view of the mulier,and Fig.

.4 re resents a perspective view of one of the m in rings.

In t e drawings, the numeral 1 designates the primary muliier cylindercasing, said casing having projecting from one side thereof the pipe 2connected to the nipple 3 of the second cylinder casing 4 which has thedischar e pipe 5 secured to the opposite end from that at which thenipple 3 is located.

Inasmuch as the interior construction of both of the mutilers of mydouble mutlier is the same I have shown the detailed construction of butone ofthe cylinders. Said cylinders have at one end la closure cap plate6, while 'fitting within the cylinders are my improved muiling rings.Said rings comprise the collar portions 7 which fit tightly against theyinner faces of the cylindersll and 4, said collars having formedintegral with onev edge thereof the disks 8 provlded4 with apertures 9having the curved lip portions 10 which extend from the disks 8 aroundthe apertures in the same direction that the collars 7 extend. It willbe observed that the apertures 9 of the various disks are so disposed asto be out of alinement with each other, the expanding gases from theexhaust entering the muiler cylinder 1 through the pipe 11 and thencecontacting with the curved lips 10 and pursuing a tortuous coursethrough the various apertures 9 which are arranged out of alinement witheach other, whereby the gases are thoroughly broken up into their'component particles, said gases passing then through the secondsimilarly constructed muier cylinder and passing noiselessly out fromthemutler discharge pipe 5.

By reference particularly to Fig. 2 it will be observed that the ed e 12of the collar 7 at the entrance end o the cylinder bears against the capplate 6 and holds the disks 8 spaced therefrom, while the shouldersprovided by the edges 12 of the various collars bear against the variousdisks 8 adjacent thereto to hold entire series of muiiiing disks incorrect spaced relation.

To secure the disks in position within the muiiler cylinder, I engage inthe end plate 13 of the cylinder the threaded bolts 14 having their endsbearing against the rearmost disk 8 said bolts having heads 15projecting from the plate 13, the turning of the bolts by grasping ofthe said heads serving to force the bolts tightly into engagement withthe disks to press the various rings against each other and firmlysecure the same in place.

From the foregoin description taken in connection with the rawings, theconstruction of my improved muffler-will be readily understood, and itwill be seen that on account of their construction, the muiiler ringsmay be readily removed and interchangeably used, and it will be furtherobserved that on account of the construction of the flat disks withtheir projecting collars, the disks provide engaging surfaces for theshoulders of the collars to prevent wedging of the rings `against eachother, while enabling them to be firmly secured in position, the flatdisks of the endmost ring affording a satisfactory bearing surface forthe ends of the securin clamp bolts.

v in lips,

I claim:

1. A muier, inder having cap p rality of muiier rlngs mounted within thecylinder and having disk portions having apertures formed thereinsurrounded by liarcomprising an inclosing cvlco lars formed on theirperiphery making tight engagement with the inner face of the c linderand extending vin the same direction as the flaring lips ofthe disks,whereby the edges of the various collars engage the adjacent disks tohold the disks in spaced relation, and clamping members passing throughone of the cap plates and engaging the endmostl muffler disk for forcingthe various muffler rings tightly against each other and securing thesame `in position.

ates at each end, a p u said disk portions having spacing 2. A muiiercom rising a casing, muier rings mounted withmthe casing and formed withintegral collars for engaging the adjacent Ymuflier ring to hold thesame in spaced relation, and securing bolts having threaded n Intestimony whereof Igaiix my signature, -30

in the presence of two witnesses.

v `DRAPER D. HELDER.

'Witnessesz A. N. HELDER, Gr. J. MoEN.

